<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图区域 -->
    <el-card>
      <!-- 搜索和添加按钮区域 -->
      <el-row :gutter="20">
        <!-- 搜索框区域 -->
        <el-col :span="8">
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
            <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
          </el-input>
        </el-col>
        <!-- 添加用户按钮区域 -->
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
        </el-col>
      </el-row>
      <!-- 用户列表区域 -->
      <el-table :data="userList" border stripe>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态" prop="mg_state">
          <!-- 作用域插槽 -->
          <template slot-scope="scope">
            <el-switch @change="userStatusChaged(scope.row)" v-model="scope.row.mg_state"></el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="190px">
          <template slot-scope="scope">
			  <!--修改按钮-->
            <el-button size="mini" type="primary" icon="el-icon-edit" @click="showEditDialog(scope.row.id)"></el-button>
			<!--删除按钮-->
            <el-button size="mini" type="danger" icon="el-icon-delete" @click="removeUserById(scope.row.id)"></el-button>
			<!--分配角色按钮-->
            <el-tooltip :enterable="false" class="item" effect="dark" content="角色分配" placement="top">
              <el-button size="mini" type="warning" icon="el-icon-setting"  @click="setRole(scope.row)"></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页区域 -->
      <el-pagination
            @size-change="handleSizeChange"
            @current-change="handleCurrentChange"
            :current-page="queryInfo.pagenum"
            :page-sizes="[1, 2, 5, 10]"
            :page-size="queryInfo.pagesize"
            layout="total, sizes, prev, pager, next, jumper"
            :total="total">
          </el-pagination>
    </el-card>
    <!-- 添加用户对话框 -->
    <el-dialog title="添加用户" :visible.sync="addDialogVisible" width="50%" @close="addDialogClose">
      <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px" class="demo-ruleForm">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机号" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>
	<!--修改用户对话框-->
	<el-dialog
	  title="修改用户"
	  :visible.sync="editDialogVisible"
	  width="50%" @close="editDialogColsed">
	  <el-form ref="editFormRef" :model="editForm" :rules="editFormRules" label-width="70px">
	    <el-form-item label="用户名" prop="username" >
	      <el-input v-model="editForm.username" disabled></el-input>
	    </el-form-item>
		<el-form-item label="邮箱" prop="email">
		  <el-input v-model="editForm.email"></el-input>
		</el-form-item>
		<el-form-item label="手机号" prop="mobile">
		  <el-input v-model="editForm.mobile"></el-input>
		</el-form-item>
		</el-form>
	  <span slot="footer" class="dialog-footer">
	    <el-button @click="editDialogVisible = false">取 消</el-button>
	    <el-button type="primary" @click="editUserInfo">确 定</el-button>
	  </span>
	</el-dialog>
	<!--分配角色对话框-->
	<el-dialog
	  title="分配角色"
	  :visible.sync="setRoledialogVisible"
	  width="50%" @close="setRoleDialogClosed">
	  <div>
		  <p>当前用户:{{userInfo.username}}</p>
		  <p>当前角色: {{userInfo.role_name}}</p>
		  <p>分配角色:
		  <el-select v-model="selectedRolId" placeholder="请选择">
		      <el-option
		        v-for="item in roleList"
		        :key="item.id"
		        :label="item.roleName"
		        :value="item.id">
		      </el-option>
		    </el-select>
			</p>
	  </div>
	  <span slot="footer" class="dialog-footer">
	    <el-button @click="setRoledialogVisible = false">取 消</el-button>
	    <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
	  </span>
	</el-dialog>
  </div>
</template>

<script>
export default {
  data () {
    // 验证邮箱的规则
    var checkEmail = (rules, value, cb) => {
      // 验证邮箱的正则表达式
      const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
      if (regEmail.test(value)) {
        // 合法的邮箱
        return cb()
      }
      cb(new Error('请输入合法的邮箱'))
    }
    // 验证手机号的规则
    var checkMobile = (rules, value, cb) => {
      // 验证手机号的正则表达式
      const regMobile = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
      if (regMobile.test(value)) {
        // 合法的手机号
        return cb()
      }
      cb(new Error('请输入合法的手机号'))
    }
    return {
      // 获取用户列表参数
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 2
      },
      // 用户列表数据
      userList: [],
      // 总条数
      total: 0,
      // 控制添加用户对话框的显示和隐藏
      addDialogVisible: false,
      // 添加用户表单数据
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      // 添加表单验证规则对象
      addFormRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          { min: 3, max: 5, message: '用户名长度在 3 到 5 个字符', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 6, max: 18, message: '密码长度在 6 到 18 个字符', trigger: 'blur' }
        ],
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { type: 'email', message: '请输入正确的邮箱地址', trigger: 'blue' },
          { validator: checkEmail, trigger: ['blur', 'change'] }
        ],
        mobile: [
          { required: true, message: '请输入手机号', trigger: 'blur' },
          { validator: checkMobile, trigger: ['blur', 'change'] }
        ]
      },
	  // 控制修改用户的对话框的显示与隐藏
	  editDialogVisible: false,
	  editForm: {},
	  editFormRules: {
		  email: [
		    { required: true, message: '请输入邮箱', trigger: 'blur' },
		    { type: 'email', message: '请输入正确的邮箱地址', trigger: 'blue' },
		    { validator: checkEmail, trigger: ['blur', 'change'] }
		  ],
		  mobile: [
		    { required: true, message: '请输入手机号', trigger: 'blur' },
		    { validator: checkMobile, trigger: ['blur', 'change'] }
		  ]
	  },
	  // 控制分配角色对话框的显示与隐藏
	  setRoledialogVisible: false,
	  //需要被分配角色的用户信息
	  userInfo:{},
	  //所有角色的数据列表
	  roleList: [],
	  //已选中角色的id值
	  selectedRolId: ''
    }
  },
  created () {
    this.getUserList()
  },
  methods: {
    // 获取用户列表数据
    async getUserList () {
      const { data: res } = await this.$http.get('users', { params: this.queryInfo })
      // console.log(res)
      if (res.meta.status !== 200) {
        return this.$message.error('获取用户列表失败！')
      }
      this.userList = res.data.users
      this.total = res.data.total
    },
    // 监听 pagesize 改变
    handleSizeChange (newSize) {
      // console.log(newSize)
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    // 监听页码时改变事件
    handleCurrentChange (newPage) {
      // console.log(newPage)
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    // 监听用户状态改变事件
    async userStatusChaged (userInfo) {
      const { data: res } = await this.$http.put(`users/${userInfo.id}/state/${userInfo.mg_state}`)
      if (res.meta.status !== 200) {
        userInfo.mg_state = !userInfo.mg_state
        return this.$message.error('修改用户状态失败！')
      }
      this.$message.success('修改用户状态成功！')
    },
    addDialogClose () {
      this.$refs.addFormRef.resetFields()
    },
	//点击按钮添加用户
	addUser () {
		this.$refs.addFormRef.validate(async valid => {
			if (!valid) return{}
			//可以发起请求添加用户
			 const { data: res } = await this.$http.post('users',this.addForm)
			 if (res.meta.status !==201 ){
				 return this.$message.error('添加用户失败')
			 }
			 this.$message.success('添加用户成功')
			 // 重新获取用户列表
			 this.getUserList()
			 // 关闭添加用户对话框
			 this.addDialogVisible=false
		})
	},
	// 展示修改用户的对话框
	async showEditDialog (id) {
		const { data: res } = await this.$http.get('users/'+id)
		if (res.meta.status !== 200){
			return this.$message.error('查询用户信息失败')
		}
		this.editForm = res.data
		this.editDialogVisible=true
	},
	//监听修改用户对话框关闭事件
	editDialogColsed () {
		this.$refs.editFormRef.resetFields()
	},
	//修改用户信息
	editUserInfo(){
		this.$refs.editFormRef.validate(async valid => {
			if (!valid) return {}
			const { data: res } = await this.$http.put('users/'+this.editForm.id,{email: this.editForm.email,mobile:this.editForm.mobile})
			
			if (res.meta.status !==200 ){
				return this.$message.error('更新用户信息失败')
			}
			//关闭修改用户对话框
			this.editDialogVisible=false
			//刷新用户列表数据
			this.getUserList()
			this.$message.success('更新用户信息成功')
		})
	},
	//根据用户id删除用户
	async removeUserById(id){
		// console.log(id)
		const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
		          confirmButtonText: '确定',
		          cancelButtonText: '取消',
		          type: 'warning'
	}).catch(err => err)
	// console.log(confirmResult)
	//如果确定返回confirm 如果取消返回cancel
	if(confirmResult !== 'confirm'){
		return this.$message.info('您取消了本次删除')
	}
	//console.log('确认删除')
	const { data: res } = await this.$http.delete('users/'+id)
	if(res.meta.status !==200 ){
		return this.$message.error('删除用户失败')
	}
	this.$message.success('删除成功')
	this.getUserList()
	},
	//展示分配角色对话框的显示
	async setRole(userInfo){
		this.userInfo =userInfo
		const { data: res } = await this.$http.get('roles')
		if(res.meta.status !==200 ){
			return this.$message.error('获取角色列表失败')
		}
		this.roleList=res.data
		this.setRoledialogVisible =true
	},
	//点击确定分配角色
	async saveRoleInfo () {
		if (!this.selectedRolId) {
			return this.$message.error('请选择要分配的角色')
		}
		//发起请求保存用户本次操作
		const { data: res } = await this.$http.put(`users/${this.userInfo.id}/role`, { rid: this.selectedRolId })
		if(res.meta.status !==200 ){
			return this.$message.error('更新角色列表失败')
		}
		this.$message.success('更新成功')
		this.getUserList()
		this.setRoledialogVisible=false
	},
	//监听分配角色对话框的关闭事件
	setRoleDialogClosed () {
		this.selectedRolId=''
		this.userInfo ={}
	}
  }
}
</script>

<style>
  .el-breadcrumb{
    padding-bottom: 15px;
    font-size: 12px;
  }
  .card{
    box-shadow: 0 1px 1px rgba(0,0,0,0.15)!important;
  }
  .el-table{
    margin-top: 15px;
  }
  .el-pagination{
    margin-top: 15px;
  }
</style>
